abb ptmv poland 2003 mv fuses abb ptmv division factory in przasnysz

MV Fuses

ABB PTMV DivisionFactory in Przasnysz

HV fuses

HV Current Limiting Fuses

1) Backup fuses Fuses capable of breaking, under specified conditions of use and behavior, all currents from the rated maximum breaking current down to the rated minimum breaking current.Suitable for application in switch/fuse combinations.

2) General purpose fuseFuses capable of breaking, under specified conditions of use and behavior, all currents from the rated maximum breaking current down to the current that causes melting of the fuse element in 1 hour or more.

3) Full range fuseFuses capable of breaking, under specified conditions of use and behavior, all currents that causes melting of the fuse element (s) up to its rated maximum breaking current.

HV fuses

HV NonCurrent Limiting Fuses

1Expulsion fuses Outdoor fuses for protection of overhead lines and distribution transformers. They comprise a tin or copper fuse element in series with a flexible braid in a tube.

2) Liquid fusesBased on early noncurrent limiting fuses that use liquids ( mostly hydrocarbon) to quench the arc.

MV fuses –where&what we have?

MV fuses portfolio

GFFF for HV fuses :Poland/Przasnysz DIN and BS standard fuses (backup

and motor protection)

VT fuses

DC fuses

Gasexpulsion fuses manufacturers: USA and Australia

More info: Visit Fuses page on www.abb.com/mediumvoltage

MV fuses –VT fuses

MV fuses portfolio VT fuses

VT protection can utilize Backup fuses or special VT fuses depending on VT’s design.

ABB produces and recommends to use special VT fuses.

VT Competitors use Backup fuses (2 A and higher ratings) or special types VT fuses

MV fuses –DC fuses

MV fuses portfolio DC fuses

There are few dimensional standards depend on tradition on the markets.

ABB types DC fuses exist on following markets: Poland, Czech, Slovakia, Croatia, Hungary.

There are Italian types Italian Railway special requirements – ABB is one of main suppliers

There is a big DC fuse market semiconductors protection main suppliers Bussmann, Ferraz

Fuses in ABB General Presentation

MV fuses portfolio MV DIN HRC fusesBackup fuses

Competitors offer ABB offer

3,6 7,2 kV

(6,3 200A), 192, 292, 442 mm (6 100A) 192 mm, (6 200A) 292 mm

6 12 kV

(6,3 200A), 192, 292, 442, 537 mm (6 100A) 292 mm, (6 200A) 442 mm

10 17,5 kV

(6,3 200A), 292, 367, 442 mm (6 63A) 292, 367, 442 mm,

(80 125A) 442 mm

10 24 kV

(6,3 200A), 292, 442, 537 mm (6 125A) 442 mm, (80 125A) 537 mm

20 36 kV

(6,3 63A), 537 mm (6,3 40A), 537 mm

MV fuses – some pictures

Indoor /Outdoor

WBP / BRT

Indoor

WBT/BWT

Product Overview Fuses type CEF

Features: High rupturing capacity Indoor/Outdoor Low minimum breaking current Low power losses /suitable in compact switchgear Low arcvoltage High breaking capacity High current limitation Dimensions acc.to DIN/IEC & BS Standards

High Rupturing Capacity Fuses

rated voltage 3,6 36 kVrated current 6,3 200 A

Features: Unlimited breaking capacity Shortcircuit current limiting Small dimensions Intended for protection of circuits powered by voltage transformer Intended for ABB voltage transformers

Type WBP Indoor design. Rated voltages 7.2, 12, 24, 36 kV. Rated current 0,4 0,8 A.

Type BRT Outdoor design. Rated voltages 7.2; 12; 17.5; 24; 36 kV. Rated current 0,8 A.

Fuses type WBP / BRT

Fuses for Voltage Transformers

Fuses type CMF

Features: High voltage current limiting Low power losses Low minimum breaking current High breaking capacity Short circuit current limitation Dimensions acc.to DIN/IEC & BS Standards

rated voltage 3,6 12 kVrated current 63 315 A

Fuses for MOTOR circuit applications

Features: High rupturing capacity Short circuit current limiting Low switching voltages

Type: WBT..., Nominal voltage 1.5 4 kV DC. Nominal current In 0,6 100 ABreaking current up to 50kA

Type: BWT Rated voltage Un 3 kV DCRated current In 3.15 250 AMinimum breaking current Imin 4 x In

Fuses type WBT / BWT

Fuses for RAILWAY TRACTION

‘Specifica Generale per la Fornitura di Valvole Fusibili A.T. per Circuiti C.C’. Trenitalia (Italian Railways)

Fuses type CEF/CMF

Automated Production Line of ABB fuse link

Accessories

CEF test fuse link 3,6 – 36 kV

Operating tong for fuse link CEF 3,6 – 36 kV

CEF fuse clips

Accessories

EUROPE: WE+CEEAUSTRIA BELGIUM BELARUSBULGARIACROATIACZECH REP.DENMARKESTONIAFINLANDFRANCEGERMANYGREAT BRITAINGREECEHUNGARYICELANDIRELANDITALYLATVIALITHUANIALUXEMBOURGNORWAYNETHERLANDSPOLANDPORTUGALROMANIASLOVAKIASPAINSWEDENSWITZERLAND

ASIA:AUSTRALIACHINAHONG KONGINDIAINDONESIAJAPANKOREA NEW ZEALANDMALAYSIA PHILIPPINESSINGAPORETAIWANTHAILANDVIETNAM

MIDDLE EAST: EGYPTISRAELJORDANKUWAITLEBANONSAUDI ARABIASYRIATUNISIATURKEYUNITED ARAB EMIRATES

SOUTH&NORTH AMERICA: ARGENTINABRAZILCANADACHILECOLOMBIAECUADORMEXICOPANAMAPERUUSAVENEZUELA

AFRICA: SOUTH AFRICATANZANIA

Fuses type CEF/CMF

HV fuses – normal operating conditionsnormal operating conditions

•Maximum ambient temperature +40C•Minimum ambient temperature is 25C•The altitude does not exceed 1000m (3300ft)•The ambient air is not excessively polluted by dust, smoke, corrosive or flammable gases, vapour or salt•Vibrations due to causes external to fuses or earth tremors are negligible •Typical condition of humidity for indoor installations are fulfilled

HV fuses – Standards

•IEC 602821 High Voltage Fuses•IEC 60549 High Voltage Fuses for external protection of shunt Power capacitor •IEC 60644 Specification for high voltage fuse links for motor circuit applications•IEC 60787 Application guide for selection of fuse links of high voltage fuses for transformers circuit applications

HV fuses – designdesign

HV fuses – general rulesgeneral rules

HV fuses – Fuse parametersFuse parameters

Striker’s types

Dimensions

Nameplate

Fuse types:CEF: indoorCEFBS: with tagsCEFU: outdoorCMF: motorCMFBS: with tags

Nameplate

HV fuses – Graphic definition of currentsGraphic definition of currents

Data and dimensions

HV fuses – application above 1000m above sea levelapplication above 1000m above sea level

Altitude correction factors for Test and Rating Voltages

Altitude correction factors for Rated Current and Temperature Rise

HV fuses – Fuse operationFuse operation

HV fuses – Graphic definition of currentsGraphic definition of currents

Switching voltages limits

As shown on the previous chart the fuse must generate an arc voltage which exceeds the operating voltage. That means when the operating voltage increase, a fuse which will generate a sufficient arc voltage must be chosen. Practically this is done by increasing the length of each fuse element. As shown in fig. 5 under short circuit conditions the arc voltage will start in all notches simultaneously and spread from the starting points against neighboring notches. The total arc voltage is a function of the arc length. Increasing arc length gives a higher arc voltage.

The switching voltage generated by CEF fuses are below these limits and a CEF fuse can safely be used if the system voltage is 50 100% of rated fuse link voltage.

Switching voltages limits

Selection of rated current of fuses

Minimum breaking current

Timecurrent characteristic

TIME CURRENT CHARACTERISTIC. The time current characteristic curves for CEF fuses are shown in NHP 300547. The characteristic are valid for all voltage classes of CEF fuses. The curves are given as medium characteristic curves. They show the melting time in relation to the prospective current causing the fuse elements to melt. The curves have a tolerance of +/10% in the current direction. The total operating time for the fuse will be the melting time plus the arcing time from the fuse elements melt until the current is interrupted. For selectivity analysis the interesting curves will be: The minimum melting current characteristic and The total clearing time/current characteristic. Minimum melting characteristic shows the melting characteristic with 0.0% tolerance. That means the minimum prospective current values that can melt the fuse. Total clearing time characteristic shows the maximum melting plus the maximum arcing time for the fuse with tolerance +0.0%. That means: The range between these two curves is the operating area for the actual fuse. In order to get selectivity downstream protection devices must clear a fault before we get an intersection with the minimum melting time curve, and higher order protection devices must not give an intersection with the total clearing time / current characteristic.

HV fuses – minimum melting characteristicminimum melting characteristic

HV fuses – total clearing characteristictotal clearing characteristic

HV fuses – Resistance and IResistance and I22t values for CEFt values for CEF

HV fuses – Cut off currentCut off current

CURRENT LIMITATION The effective current limitation can be taken from the curve in NHP 300548. The maximum value of the current which is let through by the fuse depends on the fuse rated current and the prospective current. NHP 300548 shows the peak let through current with Is = Ip*√2*X with X = 1.8.

Example: CEF 12kV 63A Ip = 7 kA (r.m.s.) The Is value is now found as the intersection between the vertical line starting at 3 kA on the xaxis and the corresponding curve for 63A

at: Is = 5 kA (Peak value).

Rated voltage selection

HV fuses – Capacitor bank protectionCapacitor bank protection

HV fuses – Transformer protectionTransformer protection

HV fuses – for use in compact switchgearfor use in compact switchgear

HV fuses – Motor protectionMotor protection

HV fuses – Coordination current limiting fuses/cutoutsCoordination current limiting fuses/cutouts

HV fuses – Your questionsYour questions

abb ptmv poland 2003 mv fuses abb ptmv division factory in przasnysz

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